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As organizations move toward a new generation of distributed systems and microservice architecture, the DevOps world finds it increasingly difficult to keep up with the hybrid needs of today's application monitoring, and the alerts it generates. Managing this aspect of IT infrastructure has DevOps professionals turning to up-and-coming serverless methodologies for this purpose. The software implementing this process ranges from commercial to open source, and expensive to free. Let's start by looking at the problem itself. What makes managing monitoring and alerts so difficult? read more

"Documentation is a love letter that you write to your future self." —Damian Conway I use Ansible as my personal notebook for documenting coding procedures—both the ones I use often and the ones I rarely use. This process facilitates my work and reduces the time it takes to do repetitive tasks, the ones where specific commands in a certain sequence are executed to accomplish a specific result. read more

Mdadm stands for Multiple Disk and Device Administration. It is a command line tool that can be used to manage software RAID arrays on your Linux PC. This article outlines the basics you need to get started with it. The following five commands allow you to make use of mdadm’s most basic features: Create a […]

Video: Red Hat's new survey of enterprise businesses reveals a world where almost everyone has joined the open-source bandwagon.

In this edition of our open source news roundup, we take a look at the 12th Blender short film, Chef shifts away from open core toward a 100% open source license, SuperTuxKart's latest release candidate with online multiplayer support, and more. Blender Animation Studio releases Spring read more

AMD unveiled a lower-powered version of the Ryzen Embedded V1000 SoC called the Ryzen Embedded R1000 with dual quad-threaded cores, 12-25W TDPs, triple 4K displays, and support for dual 10GbE ports. When AMD unveiled the Ryzen Embedded V1000 in Feb. 2018, the chipmaker claimed the x86-based CPU delivered twice the performance of its earlier R-Series […]

OpenVPN is an open source application that allows you to create a secure private network over the public internet. In this tutorial, we will show you how to step-by-step install and configure OpenVPN on CentOS 7.6. And we will implement the certificate-based OpenVPN authentication.

In the previous articles, we introduced idempotency as a way to approach your server’s security posture and looked at some specific Ansible examples, including the kernel, system accounts, and IPtables. In this final article of the series, we’ll look at a few more server-hardening examples and talk a little more about how the idempotency playbook might be used.

This article presents some of the currently available options for open source C/C++ matrix libraries employable within a Linux environment. Particular libraries discussed are Meschach, which provides routines for operating on matrices and vectors for projects coded in C, the Cooperware Matrix (CwMtx) for C++ coding, and Blitz, which provides an n-dimensional array class for C++ with integral, floating, complex, and well-behaved, user-defined types.

Today’s Firefox for iPhone and iPad users offers enhancements that will make it easier to get you to what you want faster, from new links within your library and managing …

Video: You've been able to run many Linux distros on Windows thanks to WSL for years. Now, there's a Linux distro built to work hand-in-glove with WSL.

Designate is a multi-tenant DNS-as-a-service that includes a REST API for domain and record management, a framework for integration with Neutron, and integration support for Bind9. You would want to consider a DNSaaS for the following: read more

Artificial intelligence (AI) and open source tools, technologies, and frameworks are a powerful combination for improving society. "Health is wealth" is perhaps a cliche, yet it's very accurate! In this article, we will examine how AI can be leveraged for detecting the deadly disease malaria with a low-cost, effective, and accurate open source deep learning solution. read more

We've all had those deja vu moments that make us think "I've seen this before!" I experienced them often in the late 1980s, when I first began my career in industry. I was caught up in a wave of organizational change, where the U.S. manufacturing sector was experimenting with various models that asked leaders, managers, and engineers like me to rethink how we approached things like quality, cost, innovation, and shareholder value. read more

This is the second article in a series about interprocess communication (IPC) in Linux. The first article focused on IPC through shared storage: shared files and shared memory segments. This article turns to pipes, which are channels that connect processes for communication. read more

ASRock has unveiled a fanless, Linux-ready “iBox-8265U” mini-PC with Intel’s latest Whiskey Lake CPUs, up to 32GB DDR4, a SATA bay, 2x GbE, 4x USB, triple displays, and extended temp support. ASRock Industrial Computer’s 171.8 x 150 x 71.5mm iBox-8265U is the first 8th Gen Whiskey Lake U-series based mini-PC we’ve seen. Several Whiskey Lake […]

Avalue’s Linux-friendly “EMX-KBLU2P” is a thin Mini-ITX board with 6th or 7th Gen Core CPUs, triple displays, 2x GbE, 2x SATA, 2x M.2, 4x USB 3.0, serial and GPIO interfaces, and -20 to 70°C support. Avalue announced a thin Mini-ITX board for signage, PoS, kiosk, AiO PCs, and industrial applications. Like the company’s EMX-SKLUP thin […]

In the previous tutorial, we discussed multiple concepts related to pointers in C programming language. One of the concepts we discussed was an array of pointers.

Fedora IoT is an upcoming Fedora edition targeted at the Internet of Things. It was introduced last year on Fedora Magazine in the article How to turn on an LED with Fedora IoT. Since then, it has continued to improve together with Fedora Silverblue to provide an immutable base operating system aimed at container-focused workflows. […]

This is the first article in a series about interprocess communication (IPC) in Linux. The series uses code examples in C to clarify the following IPC mechanisms: read more